Bangalore, India.

Google is your best friend, use that to maximum extend.

To avoid duplicate addition you need to check that before adding the item to the tree view.

To run .NET application framework is compulsory.
You can easily install the framework using windows live update.

This one is one of the best in the business.

As a fresher u dont have much choice regardign salary. Becasue you are not supposed to bargain without relevant experience. You have to go as per company standards.